【spring问题系列】04

• Spring PropertyPlaceholderConfigurer配置文件

1. 问题异常：

   Could not resolve placeholder 'Hatake' in value "${Hatake}"
   

2. 解决办法：

   <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
       <!--指定配置加载顺序-->
       <property name="order" value="2" />
       <!--是否忽略未匹配的占位符${...}-->
       <property name="ignoreUnresolvablePlaceholders" value="true" />
       <property name="locations">
           <list>
               <!--
                   正确使用方式：classpath:context-*.properties
               -->
               <value>classpath:context-*.properties</value>
           </list>
       </property>
   </bean>
   

参考链接：

http://seraph115.iteye.com/blog/435165
https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/beans/factory/config/PlaceholderConfigurerSupport.html#setPlaceholderPrefix-java.lang.String-